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Fluid & Gas Flow Equipment -> Pumps, Valves & Accessories -> Valves -> Relief Valves


Relief Valves




(Showing headlines 1 - 20)   more ....
Vane Pumps and Motors serve high-pressure applications.

Vane Pumps and Motors serve high-pressure applications.

FluiDyne Fluid Power    Fraser, MI 48026
Sep 15, 2014 Veljan T6/T7 single, double, and triple vane pumps provide efficiency and low noise suited for service in high-pressure applications. Flange mounted valves, including relief, unloading, and sequence valves, mount directly to pumps or manifolds to reduce number of required plumbing connections. Also available, M4 series vane motors come in C, D, and E frame sizes with range of torque sizes.

Safety Relief Valves offer pressure ratings to 750 psi.

Aquatrol/Marsh    Elburn, IL 60119
Jun 12, 2014 Available in sizes from ½ x ¾ in. to 2 x 3 in. with 17 choices of inlet/outlet combinations, Series 740 offers soft or metal-to-metal seating choices, with closed cap, open, or packed lift levers. Full nozzle valves couple pivoted and bearing based post design with swivel styled seating. Constructed of stainless steel, bronze, carbon steel, or Monel, valves are designed for all ASME Section VIII services (air/gas/steam and liquid). 

Pressure/Vacuum Conservation Vents support HEPA filter option.

L & J Technologies, Inc.    Hillside, IL 60162
Apr 30, 2014 Shand & Jurs Models 94020 Conservation Vent (Pressure/Vacuum), 94115 Vacuum Vent (Side Mounted), and 94110 Vacuum Vent are available with option that incorporates HEPA Filter mounted on vacuum inlet opening. By utilizing HEPA Filter on vacuum side of conservation vent, contaminants are prevented from entering tank and contaminating product. HEPA filter, rated for minimum efficiency of 99.97% on 0.3 micron particles, makes vents suited for use in clean industries.

Bulk Storage Relief Valve suits propane tank applications.

Bulk Storage Relief Valve suits propane tank applications.

Fisher Controls Regulator Div., Emerson Process Management    McKinney, TX 75070 8004
Apr 25, 2014 Typically used on tanks 30,000 gallons and larger, Fisher® Type 63EGLP is UL-certified and approved for bulk propane storage relief installations compliant with NFPA 58. Dual-pilot design provides high accuracy relief and ability to service one pilot while other pilot controls relief valve for uninterrupted protection, helping to minimize maintenance time.

Relief Valves feature titanium construction.

Emerson Process Management    Pleasanton, CA 94566
Sep 18, 2013 With lightweight titanium body, Fisher® 98 Series is resistant to highly corrosive conditions and aggressive chemicals typically used in offshore applications. Self-operated units do not require any external power source, facilitating installation and eliminating potential for supplementary source of ignition. Available in direct-operated and spring-loaded versions, Fisher 98 Series is suited for backpressure or relief applications in liquid, gas, air, and steam service.

Valves, Tubing, and Connectors suit surface, subsea applications.

Valves, Tubing, and Connectors suit surface, subsea applications.

Swagelok Company    Solon, OH 44139-3492
May 02, 2013 Suitable for surface and subsea installation, instrumentation, injection, and sampling systems, IPT series medium- and high-pressure products are made standard from cold worked, 316 stainless steel; annealed 316 stainless steel and other corrosion-resistant special alloys are available to meet NACE MR0175/ISO 15156 requirements. Series comprises check valves, trunnion ball valves, relief valves, needle valves, tubing and nipples, coned and thread connections, and coning and threading kits.

Bronze Safety Relief Valve works with liquid, steam, air, gas.

Spirax Sarco Inc.    Blythewood, SC 29016
Apr 18, 2013 Engineered for industrial use, SV418 is rated to ASME and National Board Certified standards for Section VIII service – 750 psi for liquid, air, and gas and 300 psi for steam. Multiple-purpose safety relief valve, available in sizes from ½–3 in., is suited for use where quick, accurate reseating and minimal blow-down (or loss of medium) is important and high capacity is required. Applications include but are not limited to pumping stations, water-works, compressors, and accumulators.

Safety Relief Valve features remote-discharge design.

Kingston    Torrance, CA 90501
Feb 28, 2013 Certified for ASME Section VIII Air/Gas/Steam applications, Model 710 integrates fully guided stem and seat pocket for optimal re-seating accuracy. Unit is available in ½–1 in. NPT sizes with ratings of 5–400 psig and -150 to 406°F. In addition to full lift design, unit includes fixed optimized blowdown and stainless steel spring. Typical applications include compressors and dryers, pressure accumulation tanks, piping systems, and industrial/chemical/power plant infrastructure.

Pressure Relief Valve offers relief pressures to 5,400 psid.

Pressure Relief Valve offers relief pressures to 5,400 psid.

Lee Company, The    Westbrook, CT 06498 0424
Aug 27, 2012 Utilizing side inlet flow path to help minimize installation boss size and weight, Hi-Q Pressure Relief Valve is capable of flow rates over 19 gpm. Unit is available in range of cracking pressures from 1,000-5,400 psid. It is designed for nominal pressures up to 5,000 psi and system peak pressures up to 6,750 psi.

Pilot Operated Relief Valves protect gas processing equipment.

Emerson Process Management    Austin, TX 78754
Aug 10, 2012 Used for overpressure protection in natural gas systems, Types EZH, EZR, and FL are available in 1-4 in., 1-8 in., and 1-10 in. sizes, respectively. Pilot-operated relief valves and backpressure regulators offer bubble-tight shut off, precise pressure control, and common body platform. Typical applications include city gate stations, large capacity distribution systems, and power plant feeds.

Pressure Regulator suits high pressure drop applications.

Fisher Controls Regulator Div., Emerson Process Management    McKinney, TX 75070 8004
Jul 03, 2012 Featuring 1,480 psig inlet/outlet rating, Tartarini(TM) 10 in. Type FL Regulator is suitable for city gate stations, power plant fuel supply, and turbine fuel supply. Modular, pilot-operated unit features no-bleed design, balanced trim, and bubble-tight shut off. Depending on flows and pressure drop, SR II noise attenuation option can reduce noise levels as much as 20 dB (A). Regulator can also be configured as relief valve or backpressure regulator.

Proportional Relief Valves suit piping systems up to 1 in.

Proportional Relief Valves suit piping systems up to 1 in.

Swagelok Company    Solon, OH 44139-3492
May 25, 2011 Used to proportionally vent overpressure, RHPS series PRV model offers NPT female, BSPP female, and BSPP male end connections in ¼, ½, ¾, and 1 in. sizes. Available threaded adapters convert from BSPP to NPT to facilitate product installation. Offering smooth operation, valve has balanced design unaffected by system back pressure up to 50% of valve's set pressure, which is offered in 5 ranges from 145-580 to 4,060-5,800 psig. Flow coefficients (Cv) range from 0.49-4.36.

Relief Valve attains full stable lift at 10% overpressure.

Groth Corp.    Stafford, TX 77477
Jul 16, 2009 Available in 2 in. (DN 50) through 12 in. (DN 300) flange sizes, 1800 A series full lift type valve is suited for applications requiring low emissions and operation near tank maximum allowable working pressure (MAWP). Modulating valve offers near zero blowdown and reseats at near set pressure, while reducing breathing losses of product in tank.

Valve handles backpressures up to 850 psig.

Valve handles backpressures up to 850 psig.

Lee Company, The    Westbrook, CT 06498 0424
Feb 03, 2009 Weighing only 20 g, Series 375 High Pressure PRI relief valve offers wide range of cracking pressures for 3,000, 4,000 and 5,000 psi systems with system peak pressures up to 6,750 psi. Features included are tungsten carbide ball and 440C CRES seat.

Backflow Preventer Valves feature compact, modular design.

Backflow Preventer Valves feature compact, modular design.

Apollo Valves    Matthews, NC 28105
Sep 30, 2008 With modular check valve design, RP 4A Series reduced pressure principle backflow preventers can fit in tight spaces and under small enclosures. They have 4 top-mounted test cocks and 2 removable captured spring check modules which are independently accessible from top and can be replaced or disassembled for ease of maintenance. Featuring corrosion resistant all-bronze body, units offer maximum working pressure of 175 psi and operating temperature range of 33-140°F.

Relief Valves control pressures from 1,000-10,000 psi.

Relief Valves control pressures from 1,000-10,000 psi.

MAXPRO Technologies, Inc.    Fairview, PA 16415
Mar 26, 2008 Suited for both gas and liquid applications, externally adjustable MT10RV Series protects systems and components against over-pressure. Poppet design allows for chatter-free pressure release and optimal deadband pressure control, while soft seat design provides bubble tight shut-off.

Proportional Relief Valve offers protection from 150-6,000 psig.

Parker Hannifin Corporation    Cleveland, OH 44124
Feb 26, 2008 Available with 0.142 in. flow ports, HPRV, PED-certified valve features captured seat design that is blow-out and chip-resistant, as well as balanced poppet design for operation in back pressures up to 2,000 psig. Range of color-coded springs configure valve for 8 cracking pressure ranges, and fine adjustment is achieved by external nut secured by Tru-Loc mechanism and lock wire. O-ring seals adapt valve for use with different types of media over temperatures from -70 to +400°F.

Sequence/Relief Valve features pressure range of 0-20 psi.

Sequence/Relief Valve features pressure range of 0-20 psi.

Air Logic, Div. Fred Knapp Engraving Co., Inc.    Racine, WI 53402
Feb 14, 2008 Designed for precise control in pneumatic circuits, Model R-6100 can be used as relay valve to sequence specific signal operation, or as relief valve to limit pressure. Fixed or adjustable pressure settings are available. To adjust valve, user turns adjusting screw clockwise to reach zero adjustment, then turns adjusting screw counterclockwise to desired relieving or sequencing pressure.

Pressure Relief Valve suits economizer applications.

Tyco International (US), Inc.    Princeton, NJ 08540
Jun 14, 2007 Certified under requirements of ASME Code Section I, pilot-operated Series 1500 is designed specifically for overpressure protection of economizers in fossil-fired power plants. All-plastic, soft seat valve operates as non-flowing modulating pilot, opens in proportion to relief demand, and is suitable for hot water, flashing water, and steam service. With no elastomer seats or seals, unit handles temperatures from -65 to 515°F and set pressure range of 15-6,170 psig.

Right Angle Relief Valves range from 5-6,000 psig.

CIRCOR Tech    Spartanburg, SC 29305
Jun 01, 2005 Series R6000 includes low-pressure models from 5–550 psig and high-pressure versions from 150–6,000 psig. Both feature raised seal lip that minimizes contact with seat, eliminating friction and preventing O-ring overstressing. Frictionless poppets ensure consistency of cracking and reseat pressures. High-pressure models are equipped with Delta stem seal, while low-pressure models have encapsulated seat seal. Orifice sizes include 0.082, 0.094, and 0.188 in.




(Showing headlines 1 - 20)   more ....


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